if(1)
	{
		ab=123;
		print(ab);
	}
if(0)
	print(ab);
if(1)
	{
		bc=222;
		print(bc);
	}
 else
	 print(ab);
if(0)
	{
		bc=222;
		print(bc);
	}
 else
	 print(ab);

//expected result:123 222 123
